Support to adding 64bit address register in ARM64 device tree blob

Can you anyone please help to add 64bit register supported device to ARM64 linux kernel dtb.In my platform linux kernel device driver, *(res)->start uses 1st entry of 'reg' dtb and *resource_size(res) uses 2nd entry of 'reg' dtb.

dev: dev@8000000000 {        #address-cells = <2>;        #size-cells = <1>;        compatible = "nxp,dev-1.0";        reg-names = "dev0", "dev1";        reg = <0x00000080 0x00000000 0x01FFFFFF>,//Inst0 0x80_0000_0000 to 0x80_1FFF_FFFF<0x00000080 0x50000000 0x01FFFFFF>;//Inst1 0x80_5000_0000 to 0x80_6FFF_FFFF        interrupts = <0 170 0>;        interrupt-parent = <&intc>;};

Driver:

    *res = platform_get_resource_byname(pdev, IORESOURCE_MEM, name);    if (*res == NULL) {            dev_err(device, "resource %s not found!\n", name);            return -ENODEV;    }    //(*res)->start => 0x00000080    //resource_size(*res)  => 0x00000000    region = devm_request_mem_region(device, (*res)->start,                                     resource_size(*res), dev_name(device));